package org.javaldap.server.backend;

/*
The JavaLDAP Server
Copyright (C) 2000  Clayton Donley (donley@linc-dev.com) - All Rights Reserved

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/

/**
 * A Backend that handles requests for the root naming context.
 *
 * @author: Clayton Donley
 */

import java.util.Vector;
import java.util.Hashtable;
import java.util.Enumeration;

import org.javaldap.ldapv3.*;

import org.javaldap.server.syntax.DirectoryString;
import org.javaldap.server.Entry;
import org.javaldap.server.EntrySet;

import org.javaldap.server.schema.SchemaChecker;
import org.javaldap.server.schema.ObjectClass;
import org.javaldap.server.util.InvalidDNException;
import org.javaldap.server.util.DirectoryException;

public class BackendRoot extends BaseBackend {

	public EntrySet get(DirectoryString base, int scope, Filter filter, boolean attrsOnly, Vector attrs) throws DirectoryException {
		if (scope == SearchRequestEnum.BASEOBJECT && base.equals(new DirectoryString(""))) {
			Vector entries = new Vector();
			entries.addElement(new Long(1));
			return (EntrySet)new GenericEntrySet(this,entries);
		}
		return (EntrySet)new GenericEntrySet(this,new Vector());
	}
	public Entry getByID(Long id) {

		Entry rootEntry = null;
		try {
			rootEntry = new Entry(new DirectoryString(""));
		} catch (InvalidDNException ide) {}


		Vector namingContexts = new Vector();
		Vector objectClass = new Vector();
		Vector subschemaEntry = new Vector();
		Vector supportedLDAPVersion = new Vector();
		//Vector supportedSASLMechanisms = new Vector();
		//Vector supportedControl = new Vector();

		Enumeration ncEnum = BackendHandler.Handler().getHandlerTable().keys();
		while (ncEnum.hasMoreElements()) {
			DirectoryString nc = (DirectoryString)ncEnum.nextElement();
			if (!nc.equals(new DirectoryString("")) && !nc.equals(new DirectoryString("cn=schema")))
				namingContexts.addElement(nc);
		}

		objectClass.addElement(new DirectoryString("top"));

		subschemaEntry.addElement(new DirectoryString("cn=schema"));

		supportedLDAPVersion.addElement(new DirectoryString("3"));

		rootEntry.put(new DirectoryString("namingContexts"),namingContexts);
		rootEntry.put(new DirectoryString("objectClass"),objectClass);
		rootEntry.put(new DirectoryString("subschemaEntry"),subschemaEntry);
		rootEntry.put(new DirectoryString("supportedLDAPVersion"),supportedLDAPVersion);


		return rootEntry;
	}
}